This is my first grow going into week 6. I have them fluorescent lights for 18 hours for now, and it seems one plant is doing better than the other. I just started to give them fox farms tiger bloom, grow big, and big bloom about a week ago twice a week. I have a have a thermometor in the bigger plant that floats around 78-80 so i dont think heat is a issue and humidity of about 40. This is my first grow is this normal or should i do something?